Compilation from source without -DBUILD_CONFIG=mysql_release and with -DRPM=centos6 fails to create libmysqld.a

RPMs created with these cmake flags are missing libmysqld.a' which is required for mysql clients.

...

%build

...

# Build debug mysqld and libmysqld.a

mkdir debug

(

  cd debug

  # Attempt to remove any optimisation flags from the debug build

  CFLAGS=`echo " ${CFLAGS} " | \

            sed -e 's/ -O[0-9]* / /' \

                -e 's/-Wp,-D_FORTIFY_SOURCE=2/ /' \

                -e 's/ -unroll2 / /' \

                -e 's/ -ip / /' \

                -e 's/^ //' \

                -e 's/ $//'`

  CXXFLAGS=`echo " ${CXXFLAGS} " | \

              sed -e 's/ -O[0-9]* / /' \

                  -e 's/-Wp,-D_FORTIFY_SOURCE=2/ /' \

                  -e 's/ -unroll2 / /' \

                  -e 's/ -ip / /' \

                  -e 's/^ //' \

                  -e 's/ $//'`

  # XXX: MYSQL_UNIX_ADDR should be in cmake/* but mysql_version is included before

  # XXX: install_layout so we can't just set it based on INSTALL_LAYOUT=RPM

  /opt/cmake_2.8.12.2/bin/cmake ../%{src_dir} -DRPM=centos6 \

           -DINSTALL_LAYOUT=RPM \

           -DCMAKE_BUILD_TYPE=Debug \

           -DENABLE_DTRACE=OFF \

           -DMYSQL_UNIX_ADDR="%{mysqldatadir}/mysql.sock" \

           -DFEATURE_SET="%{feature_set}" \

           -DCOMPILATION_COMMENT="%{compilation_comment_debug}" \

           -DMYSQL_SERVER_SUFFIX="%{server_suffix}"

  echo BEGIN_DEBUG_CONFIG ; egrep '^#define' include/config.h ; echo END_DEBUG_CONFIG

  make ${MAKE_JFLAG} VERBOSE=1

)